I see. The screen is not curved. Fan seems to be operating normally. Should I measure voltage at the cooling fan?
What about using tape to exclude certain pins on LVDS on either the Main board or T-Con board? Might that work and if so how to determine which pins?
Thanks again....
Announcement
Collapse
No announcement yet.
User Profile
Collapse
-
Thanks Diah, in that case can you please explain why the menu is completely not effected whatsoever in any brightness setting? As mentioned some, the black areas of the menu are subject to the "Menu Transparency" setting but others menus such as the one I attached have no transparency and those are perfect even at the lowest setting.
Asking because I don't want to make the wrong decision since it may not be worth buying more than one board for this TV....
Leave a comment:
-
This is very unfortunate since I took it all apart to get to the BCB. Is there anything I can do before I put it all back together?
Ideally, I'd like to be able to remove 1 or more connections from the T-Con and STILL have some sort of image displayed. My main issue as it pertains to diagnosis is that as soon as I disconnect ANY connections from the T-Con the BL stays on but there is absolutely no image so it is pointless to disconnect. No way to tell the T-Con to stay on?...
Leave a comment:
-
To confirm, you mean with PSU connected to MB or not? If not, all I have is black screen in all cases. How to get pattern test display with PSU to MB disconnected and T-Con in standalone mode?
What to disconnect from attached picture?
Do you want me to just test to see if BL will come on?...
Leave a comment:
-
Just started I'm on #4. Good news is that there are 2 fuses on the T-Con and both have 12.8 with reference to chassis and the backlight does come on with PSU to MB disconnected.
See pics for #4:
CNM803 = PSU to MB
CNT804 = PSU to T-Con
Can you please rephrase which pins to jumper?...
Leave a comment:
-
To confirm, you are saying disconnect BOTH U-Ribbon cables as shown in the attached picture as example? If yes, then when I do that I only get black screen with nothing. Also tried restarting and nothing.
If I am not understanding, can you please point what I should disconnect in the picture? Thanks again....
Leave a comment:
-
I do not understand something. If I disconnect any connection in either T-Con or any of the U-Ribbons in any Buffer Control Boards then the entire screen goes black until restart. If I restart without ALL of the connections existing then all the entire screen is black, so how to diagnose? I cleaned all ribbon contacts and reseated - no difference.
Are you sure this is the correct path and it's not either T-Con board or Main board is the issue?
Thanks again....
Leave a comment:
-
Hi Diah,
Could some the menu being effected have to do with the "Menu Transparency" setting? This setting is found in the System -> Accessibility menu.
Please see the difference between Menu Transparency setting set to "Low" and "High" on the attached photos. The lines can still be seen on the "Low" setting but not as much as the "High"setting. Unfortunately there is no" Off" setting for the transparency!...
Leave a comment:
-
First, thanks for replying. Funny you said that because I already tried cleaning the LVDS connections yesterday between them but it didn't help. Also tried isolating which IC could be defective to trigger a change with low heat but it didn't help. I'll definately get you a high res photo. Do you want both boards or just MLB? No issue getting both if u think it'll help....
Leave a comment:
-
Samsung LED UHD TV - Bad Main Board or Bad T-Con Board? Pictures inside
Hi All,
Thanks for reading. Based on the interesting fact that the vertical lines issue don't seem to effect the menus whatsoever but rather everything around the menu regardless of video is shown, I'm trying to set mine whether the issue is the main board or the t-con board.
Again what's baffling is that the menu is not effected whatsoever. However, any other video displayed regardless of inputs or when no inputs exist exhibits the vertical lines and seem to effect black areas only.
The lines are green in color when the tv is in "Game Mode" and...5 Photos
No activity results to display
Show More
Leave a comment: